CVE-2019-9755 : What You Need to Know
Learn about CVE-2019-9755, a vulnerability in ntfs-3g version 2017.3.23 allowing a local attacker to trigger a heap buffer overflow. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability in ntfs-3g version 2017.3.23 allows a local attacker to trigger a heap buffer overflow by running the /bin/ntfs-3g program with carefully crafted arguments. This could lead to a program crash or potential execution of arbitrary code, especially in systems where /bin/ntfs-3g is a setuid-root binary.
Understanding CVE-2019-9755
This CVE involves an integer underflow issue in ntfs-3g version 2017.3.23, potentially leading to a heap buffer overflow.
What is CVE-2019-9755?
The vulnerability in ntfs-3g version 2017.3.23 allows a local attacker to trigger a heap buffer overflow by executing the /bin/ntfs-3g program with carefully crafted arguments.
The Impact of CVE-2019-9755
Exploiting this vulnerability could result in a program crash or enable the attacker to execute arbitrary code. In systems where /bin/ntfs-3g is a setuid-root binary, privilege escalation is possible.
Technical Details of CVE-2019-9755
This section provides more technical insights into the vulnerability.
Vulnerability Description
An integer underflow issue exists in ntfs-3g 2017.3.23, allowing a local attacker to trigger a heap buffer overflow by running /bin/ntfs-3g with specially crafted arguments.
Affected Systems and Versions
- Product: ntfs-3g
- Vendor: n/a
- Version: 2017.3.23
Exploitation Mechanism
The vulnerability can be exploited by a local attacker launching /bin/ntfs-3g with carefully designed arguments from a specific directory, leading to a heap buffer overflow.
Mitigation and Prevention
Protecting systems from CVE-2019-9755 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update ntfs-3g to a patched version if available
- Restrict access to the vulnerable program
- Monitor system logs for any suspicious activities
Long-Term Security Practices
- Regularly update and patch all software components
- Implement the principle of least privilege to limit potential damage
- Conduct regular security audits and penetration testing
Patching and Updates
- Apply patches provided by the vendor to address the vulnerability
- Stay informed about security advisories and updates from relevant sources